Multicast is the mechanism using which data traffic is reduced thoughout the network if a certain number of receivers are interested in the same data from the same source. This increases the efficiency of the network as less packets needs to be processed by the intermediate routers in the network. ...

learn more… | top users | synonyms

1
vote
2answers
2k views

DD-WRT and Chromecast: default WLAN to LAN bridge blocks UDP?

I have DD-WRT running in gateway mode on a DIR-615 I1. I've updated to the newest available build. Chromecast is a wireless-only device, for those unfamiliar. The device has been set up and ...
0
votes
1answer
16 views

Windows XP multicast route unable to be set on Windows 7

I have to set a route that I am setting in windows xp by using this command : route -p add 224.224.224.0 mask 240.240.240.0 150.1.2.194 metric 30 Under windows 7, this command doesn't work anymore ...
0
votes
1answer
57 views

What will a router do receiving a multicast IP packet with no multicast routing protocols enabled in it?

Have anybody seen what a router having no multicast routing protocols enabled will do when it receives multicast data ? will it ignore ? Will it consider it as like any other unicast data ?
0
votes
1answer
339 views

IGMP v3 multicasted television through router with IGMP v2

we can connect to internet using LAN cable at out student's dormatory. We can watch multicasted television on our computers using VLC media player. Everything works fine this way. I decided to buy ...
0
votes
1answer
67 views

can Multicast receivers also act as multicast data generators?

suppose I have 4 computers A B C and D. If B C and D are receiving multicast data from A, can one of them ...say B... can also send multicast data to others say A C and D?
0
votes
1answer
880 views

Problem in listening to multicast in multihomed Linux server

I am trying to write a multicast client on a machine with two NICs, and I can't make it work. I can see with a sniffer that once I start the program the NIC (eth4) start receiving the multicast ...
1
vote
0answers
19 views

NTP Multicast configuration

I'm trying to get NTP multicast set up between a few computers. Right now I'm getting NTP multicast packets from a computer that I have neither access to nor information on (let's call that A) that is ...
1
vote
0answers
160 views

Swapping the ISP supplied router on DSL connections that also supply TV

My ISP is TalkTalk and I have one of their FTTC packages. With that I also have their YouView TV service. Before getting this service I used my own routers, as ISP supplied ones didn't have the ...
0
votes
0answers
38 views

Command to add multicast address to routing table

I am trying to add a multicast route. If I do a netstat -g I get: idf@idf-ZBOX-ID42-BE ~ $ netstat -g IPv6/IPv4 Group Memberships Interface RefCnt Group --------------- ------ ...
0
votes
0answers
148 views

Why does multicast streaming only work with 224.0.0.0/4 routed to network card/NIC in Linux?

a project of mine involves multicast streaming of DBV-S2 TV channels by using a networked SAT tuner. As there are no IGMP-capable network switches, the network is quite stressed and so I set up a ...
0
votes
0answers
73 views

How does UPnP know which IGD to port forward on if there is more than one IGD?

Say I have two IGDs on the same subnet with UPnP enabled. The host is configured to use one as its default gateway. How do UPnP applications know which IGD to port forward on. I don't think they use ...
0
votes
0answers
49 views

How to determine mcast_if of process listening on UDP multicast address?

How to determine mcast_if of process listening on UDP multicast address? I know I can netstat -lnp to show what processes are listening on which addresses, but a process may have a mcast_if ethX. ...
0
votes
0answers
355 views

How do I get multicast to work on a VMWare Fusion Host-Only Network?

How do I get multicast to work on a VMWare Fusion Host-Only Network? (repeated from title) To be explicit, I need to do the following: VMWare/Fusion-hosted/guest app sends UDP packets to a multicast ...
0
votes
0answers
98 views

Temporary redirect some multicast streams

I am using some multicast MPEG-TS streams as input of my application software on ubuntu 12.04. I tend my application software receive inputs one by one; then I have to block or disable all inputs and ...